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Finding the Fourth Proportional to 20,562.82, 30,839.62 and 9,458.85

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Solution

The fourth proportional to 20,562.82, 30,839.62 and 9,458.85 is: 14,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.82 : 30,839.62 = 9,458.85 : x
  2. Step 2: Convert to fraction form
    20,562.82/30,839.62 = 9,458.85/x
  3. Step 3: Cross multiply
    20,562.82x = 30,839.62 × 9,458.85
  4. Step 4: Simplify right side
    20,562.82x = 291,707,339.64
  5. Step 5: Solve for x
    x = 291,707,339.64/20,562.82
  6. Step 6: Final answer
    x = 14,186.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.